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The main objective of this study was to test the capability of CNMs to mediate the reductive dechlorination of chlorinated aliphatic hydrocarbons. We herein investigated the mediation effects of graphene oxide (GO) and multi-walled carbon nanotubes (CNT) on the reductive dechlorination of hexachloroethane by sodium sulfide in aqueous solutions (pH buffered). The presence of 10mg/L CNT or GO enhanced...
A rapid and easy approach for synthesizing chemically reduced graphene oxide (CRGO) by using formamidinesulfinic acid (FAS) as a reducing agent is reported. The obtained CRGO nanosheets were characterized with Fourier transform infrared spectroscopy, UV–Vis absorption spectroscopy, Raman spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy, atomic force...
Graphene sheets were prepared by the calcination of calcium carbonate with magnesium powder under the protection of argon gas flow. CaO, MgO and graphene sheets were achieved by the reaction of CaCO 3 with Mg, which is an environmentally friendly way for producing graphene. The graphene sheets were characterized by transmission and scanning electron microscopy, X-ray diffraction, atomic force...
A mesoporous carbon nanofiber-modified pyrolytic graphite electrode (MCNF/PGE) has been prepared and applied to the simultaneous electrochemical determination of dopamine (DA), uric acid (UA) and ascorbic acid (AA). The oxidation overpotentials of these biomolecules decrease significantly, the overlapping of these peaks in bare PGE is well resolved, and their anodic peak currents increase dramatically...
Some plant tissues are rich in transition metal Fe. So, we explored the use of black jew’s-ear fungus and black sesame seeds as catalyst precursors to prepare carbon nanotubes by chemical vapor deposition. Each catalyst particle arises from the metal content of a single cell of the precursor, hence the distribution of catalyst particles is uniform. Their size and composition are almost identical....
Coiled carbon nanotubes were prepared by catalytic chemical vapor deposition (CCVD) on finely divided Co nano-particles supported on silica gel under reduced pressure and relatively low gas flow rates. The morphology and the graphitization of the coil tube, coil bend, and coil node of the coiled carbon nanotubes were examined by transmission electron microscope (TEM). The influence of pH value, reaction...
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